家电科技2024，Vol.1Issue(1)：92-96,5.DOI:10.19784/j.cnki.issn1672-0172.2024.01.015
往复式压缩机吸气消音器声学特性及流体性能综合研究
Comprehensive study on acoustic characteristics and fluid performance of suction muffler of reciprocating compressor
摘要
Abstract
The suction muffler of reciprocating compressor has a great influence on the noise and performance of the compressor.Therefore,a three-dimensional sound field model and internal flow field model of the suction muffler are established.The acoustic finite element model and FW-H aeroacoustics model are used to calculate its acoustic characteristics respectively.At the same time,the outlet flow of the muffler is monitored based on fluid mechanics transient calculation.The optimal scheme of the suction muffler of a reciprocating compressor is established by using the multi-physical field numerical analysis method and the simulation results are verified by experimental tests finally.The results show that the measured noise of the optimized scheme is better in the 400 Hz～1250 Hz and 2500 Hz～6300 Hz frequency bands,the maximum optimized amplitude is 4 dB(A)and the total noise is reduced by 2 dB(A).The performance test results are also greatly improved compared with the original scheme,the cooling capacity is increased by 7.8 W(about 5%)and the COP is increased by 0.021,which effectively verifies the accuracy of the sound power level,aerodynamic noise and CFD numerical analysis model of the suction muffler.Therefore,the comprehensive analysis method can better guide the forward design and optimization of the suction muffler.关键词
往复式压缩机/吸气消音器/气动噪声/声功率级Key words
Reciprocating compressor/Suction muffler/Aerodynamic noise/Sound power level分类
通用工业技术引用本文复制引用
杨鑫,陈新杰,张巍,葛成伟,郑星炜..往复式压缩机吸气消音器声学特性及流体性能综合研究[J].家电科技,2024,1(1):92-96,5.基金项目
本文由企业内部项目"往复式压缩机(R290)家用化静音技术开发项目"支持. （R290）
